Roadmaster tow bar, Unified brake system by U.S. Gear.
As mentioned, this is like which is better...Ford or Chevy. All depends upon what the replier is using.
Personally, I don't think you can go wrong with either Roadmaster, Demco, or Blue Ox. They are all equally efficient and all cost about the same. Best to buy the same brand tow bar as the brand of your base plates.
As for brake systems, there are many different types, so you'll need to do some research and decide which "type" is best for you. Then you can research the "type" you chose and pick the one of that type that suits your needs.
Good luck
Ron